Michael built a garden that was 4 feet wide by 5 feet long. What is the area of the garden?
20 ft. 2
What is the formula to find surface area of a rectangular prism?
SA=2(lw+lh+wh)
How do you find volume?
What is this polyhedron?
cube or rectangular prism
a closed, three dimensional shape with flat sides
polyhedra
Harry wants to find the area of the soccer field. What formula should he use to find the area of the rectangular soccer field?
length x width or base x height
What is the formula to find surface area of a cube?
6s2
Find the volume of this rectangular prism.
lxwxh
6x3x2
18x2
36cm3
What is this polyhedron?
rectangular prism
the number of cubic units that fill a three dimensional region, without any gaps or overlaps
volume
What is the formula for finding the area of a triangle?
base x height divided by 2
Find the surface area of this cube.
6s2
6x52
6x5x5
6x25
150 cm2
Find the volume of this cube.
lxwxh
5x5x5
125 units3
What is this polyhedron?
rectangular pyramid
tells you how many factors to multiply
exponent
Find the area of this triangle.
40 cm2
Find the surface area of this rectangular prism.
2(lw+lh+wh)
2(8x3+8x4+3x4)
2(24+32+12)
2(68)
136 units2
Tracy says the volume of the rectangular prism below is 27m3. Tracy is incorrect. Why? & What is the correct volume?
Tracy added instead of multiplying. The correct volume is 360m3.
Name the polyhedron.
triangular pyramid
each flat side of a polyhedron
face
Addison and Dale were mowing the lawn and decided to split the work between the two of them. Addison said she would mow the back yard if Dale would mow the front yard and on both sides of the house. Dale said that wasn't fair, because he would be mowing three areas and Addison would only be mowing one area. Is he correct to think this?
No. He is incorrect, because Addison will actually be mowing 9,000 yds. 2 and Dale will only be mowing 8,150 yds. 2.
Find the surface area of the polyhedron represented by this net.
72 units 2
Find the volume of the rubik's cube.
length x width x height
3x3x3
27 units3
Name the polyhedron.
triangular prism
the number of square units that covers all the faces of the polyhedron, without any gaps or overlaps
surface area
Name this polyhedron and find its surface area.
triangular prism
2(bxh/2)+bh+bh+bh
2(24x7/2)+(24x22)+(22x7) + (25x22) {hypotenuse of triangle=25m}
2(84)+528+154+550
168+528+154+550
1400m2